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Update app.py
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app.py
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import
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async def random_url(_):
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pet = random.choice(["cat", "dog"])
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api_url = f"https://api.the{pet}api.com/v1/images/search"
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async with aiohttp.ClientSession() as session:
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async with session.get(api_url) as resp:
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return (await resp.json())[0]["url"]
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@pn.cache
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def load_processor_model(
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processor_name: str, model_name: str
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) -> Tuple[CLIPProcessor, CLIPModel]:
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processor = CLIPProcessor.from_pretrained(processor_name)
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model = CLIPModel.from_pretrained(model_name)
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return processor, model
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async def open_image_url(image_url: str) -> Image:
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async with aiohttp.ClientSession() as session:
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async with session.get(image_url) as resp:
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return Image.open(io.BytesIO(await resp.read()))
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def get_similarity_scores(class_items: List[str], image: Image) -> List[float]:
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processor, model = load_processor_model(
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"openai/clip-vit-base-patch32", "openai/clip-vit-base-patch32"
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)
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inputs = processor(
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text=class_items,
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images=[image],
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return_tensors="pt", # pytorch tensors
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)
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outputs = model(**inputs)
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logits_per_image = outputs.logits_per_image
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class_likelihoods = logits_per_image.softmax(dim=1).detach().numpy()
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return class_likelihoods[0]
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async def process_inputs(class_names: List[str], image_url: str):
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"""
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High level function that takes in the user inputs and returns the
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classification results as panel objects.
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"""
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try:
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main.disabled = True
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if not image_url:
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yield "##### โ ๏ธ Provide an image URL"
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return
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yield "##### โ Fetching image and running model..."
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try:
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pil_img = await open_image_url(image_url)
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img = pn.pane.Image(pil_img, height=400, align="center")
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except Exception as e:
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yield f"##### ๐ Something went wrong, please try a different URL!"
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return
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class_items = class_names.split(",")
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class_likelihoods = get_similarity_scores(class_items, pil_img)
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# build the results column
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results = pn.Column("##### ๐ Here are the results!", img)
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for class_item, class_likelihood in zip(class_items, class_likelihoods):
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row_label = pn.widgets.StaticText(
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name=class_item.strip(), value=f"{class_likelihood:.2%}", align="center"
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)
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row_bar = pn.indicators.Progress(
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value=int(class_likelihood * 100),
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sizing_mode="stretch_width",
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bar_color="secondary",
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margin=(0, 10),
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design=pn.theme.Material,
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)
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results.append(pn.Column(row_label, row_bar))
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yield results
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finally:
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main.disabled = False
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# create widgets
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randomize_url = pn.widgets.Button(name="Randomize URL", align="end")
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image_url = pn.widgets.TextInput(
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name="Image URL to classify",
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value=pn.bind(random_url, randomize_url),
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)
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class_names = pn.widgets.TextInput(
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name="Comma separated class names",
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placeholder="Enter possible class names, e.g. cat, dog",
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value="cat, dog, parrot",
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)
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input_widgets = pn.Column(
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"##### ๐ Click randomize or paste a URL to start classifying!",
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pn.Row(image_url, randomize_url),
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class_names,
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)
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footer_row.append(href_button)
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footer_row.append(pn.Spacer())
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# create dashboard
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main = pn.WidgetBox(
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input_widgets,
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interactive_result,
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footer_row,
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)
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title = "Panel Demo - Image Classification"
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pn.template.BootstrapTemplate(
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title=title,
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main=main,
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main_max_width="min(50%, 698px)",
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header_background="#F08080",
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).servable(title=title)
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from dash import Dash, dcc, html, Input, Output
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# Create the Dash app
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app = Dash(__name__)
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# Layout of the app
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app.layout = html.Div([html.H1("โ๏ธูุง ููุง ุจุงูุดุจุงุจโ๏ธ\n"),
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# html.Br(),
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dcc.Input(id='input-text-1', value='ุฐูุฑ ุงู
ุงูุซูุ', type='text'),
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dcc.Input(id='input-text-2', value='Your name', type='text'),
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html.Br(), # line break
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html.Br(),
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html.Div(id='output-text')
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])
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# Define the callback function
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@app.callback(
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Output('output-text', 'children'), # What gets updated
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Input('input-text-1', 'value'), # First input trigger
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Input('input-text-2', 'value') # Second input trigger
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)
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def update_output(input1, input2):
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if input1.lower()=="m" or input1.lower()=="male":
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title="Mr"
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elif input1.lower()=="f" or input1.lower()=="female":
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title="Miss"
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else:
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title=" "
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return f'Hello to your 1st web app, {title} {input2} ๐๐๐'
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# Run the app
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if __name__ == '__main__': # the main() function will execute only if the script is run directly.
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app.run_server(mode="external", host='0.0.0.0', port=7860)
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